1421321360 has 40 divisors (see below), whose sum is σ = 3374891136. Its totient is φ = 556430720.

The previous prime is 1421321347. The next prime is 1421321393. The reversal of 1421321360 is 631231241.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185246 + ... + 192765.

Almost surely, 2^1421321360 is an apocalyptic number.

1421321360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421321360 is an abundant number, since it is smaller than the sum of its proper divisors (1953569776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421321360 is a wasteful number, since it uses less digits than its factorization.

1421321360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378071 (or 378065 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1421321360 is about 37700.4159128252. The cubic root of 1421321360 is about 1124.3393942224.

The spelling of 1421321360 in words is "one billion, four hundred twenty-one million, three hundred twenty-one thousand, three hundred sixty".